Green Building Rating System
For New Construction &
Major Renovations
(LEED-NC)
Version 2.1
November 2002
Revised
LEEDTM Rating
System3/14/03
Version 2.1
U.S. Green Building Council
Introduction
The Leadership in Energy and Environmental Design (LEED™) Green Building Rating System represents the U.S. Green Building Council’s effort to provide a national standard for what consistitutes a “green building.” Through its
use as a design guideline and third-party certification tool, it aims to improve
occupant well-being, environmental performance and economic returns of
buildings using established and innovative practices, standards and technologies.
Consistent with USGBC policy for the continuous improvement of LEED,
Version 2.1 is an administrative update of the LEED 2.0 Rating System for new
commercial construction, major renovations and high-rise residential buildings. Its purpose is to address concerns raised by USGBC members and
other LEED users by providing technical clarifications and streamlining the
documentation requirements for LEED certification. These improvements
are expected to simplify the documentation process for project teams and to
reduce the costs of documenting LEED credits while retaining the stringency
and integrity of the LEED Version 2.0 standards. An approval vote by USGBC
membership is not required for Version 2.1 because performance levels have
not been altered. Version 2.1 was created through the generous volunteer
efforts of the LEED Technical Advisory Groups and with the guidance of the
LEED Steering Committee. This document represents general consensus, not
unanimous agreement. USGBC gratefully acknowledges the contributions of
its committee members.
The new LEED Letter Template is a central component of the Version 2.1
improvements. It is a dynamic tracking and documentation tool that must be
used by Version 2.1 project teams in preparing a complete LEED certification
submittal. For each credit, the Letter Template prompts LEED practitioners for
data, indicates when documentation requirements have been fulfilled adequately for submittal, and serves as a formatting template for the project’s
initial submittal. Additional support documents will be requested during the
certification assessment’s audit phase.
This Rating System document states the basic intent, requirements and documentation submittals that are necessary to achieve each prerequisite and
voluntary “credit.” Projects earn one or more points toward certification by
meeting or exceeding each credit’s technical requirements. All prerequisites
must be achieved in order to qualify for certification. Points add up to a final
score that relates to one of four possible levels of certification. See the LEED
Checklist for a summary of credit topics and point values. A short description
of technologies and strategies is included for each credit to briefly inform
those who are unfamiliar with the particular topic. The LEED Reference Guide
for Version 2.1—the technical companion to the Rating System and Letter
Template—provides further background, explanations and instructions.
LEEDTM Rating System Version 2.1
i
Disclaimer and Notices
The U.S. Green Building Council authorizes you to view the LEED 2.1 Green
Building Rating System for your individual use and to copy as-is, or in part if
you reference the original document. No content may be altered. In exchange for this authorization, you agree to retain all copyright and other
proprietary notices contained in the original LEED 2.1 Green Building Rating
System. You also agree not to sell or modify the LEED 2.1 Green Building
Rating System or to reproduce, display or distribute the LEED 2.1 Green
Building Rating System in any way for any public or commercial purpose,
including display on a web site or in a networked environment. Unauthorized use of the LEED 2.1 Green Building Rating System violates copyright,
trademark, and other laws and is prohibited. All text, graphics, layout and
other elements of content contained in the LEED 2.1 Green Building Rating
System are owned by the U.S. Green Building Council and are protected by
copyright under both United States and foreign laws.
Also please note that none of the parties involved in the funding or creation
of the LEED 2.1 Green Building Rating System, including the U.S. Green
Building Council or its members, make any warranty (express or implied) or
assume any liability or responsibility, to you or any third parties for the
accuracy, completeness or use of, or reliance on, any information contained
in the LEED 2.1 Green Building Rating System, or for any injuries, losses or
damages (including, without limitation, equitable relief ) arising out of such
use or reliance.
As a condition of use, you covenant not to sue, and agree to waive and
release the U.S. Green Building Council and its members from any and all
claims, demands and causes of action for any injuries, losses or damages
(including, without limitation, equitable relief ) that you may now or hereafter
have a right to assert against such parties as a result of your use of, or reliance
on, the LEED 2.1 Green Building Rating System.
Copyright
Copyright © 2002 by the U.S. Green Building Council. All rights reserved.
Trademark
LEEDTM is a registered trademark of the U.S. Green Building Council.
U.S. Green Building Council
ii
Table of Contents
Project Checklist
v
Sustainable Sites
1
Prerequisite 1 Erosion & Sedimentation Control
1
Credit 1
Site Selection
2
Credit 2
Development Density
3
Credit 3
Brownfield Redevelopment
4
Credit 4
Alternative Transportation
5
Credit 5
Reduced Site Disturbance
9
Credit 6
Stormwater Management
11
Credit 7
Heat Island Effect
13
Credit 8
Light Pollution Reduction
15
Water Efficiency
16
Credit 1
Water Efficient Landscaping
16
Credit 2
Innovative Wastewater Technologies
18
Credit 3
Water Use Reduction
19
Energy & Atmosphere
21
Prerequisite 1 Fundamental Building Systems Commissioning
21
Prerequisite 2 Minimum Energy Performance
22
Prerequisite 3 CFC Reduction in HVAC&R Equipment
23
Credit 1
Optimize Energy Performance
24
Credit 2
Renewable Energy
26
Credit 3
Additional Commissioning
29
Credit 4
Ozone Depletion
30
Credit 5
Measurement & Verification
31
Credit 6
Green Power
32
LEEDTM Rating System Version 2.1
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Materials & Resources
Prerequisite 1 Storage & Collection of Recyclables
33
Credit 1
Building Reuse
34
Credit 2
Construction Waste Management
37
Credit 3
Resource Reuse
39
Credit 4
Recycled Content
41
Credit 5
Local/Regional Materials
43
Credit 6
Rapidly Renewable Materials
45
Credit 7
Certified Wood
46
Indoor Environmental Quality
U.S. Green Building Council
iv
33
47
Prerequisite 1 Minimum IAQ Performance
47
Prerequisite 2 Environmental Tobacco Smoke (ETS) Control
48
Credit 1
Carbon Dioxide (CO2 ) Monitoring
50
Credit 2
Ventilation Effectiveness
51
Credit 3
Construction IAQ Management Plan
52
Credit 4
Low-Emitting Materials
55
Credit 5
Indoor Chemical & Pollutant Source Control
59
Credit 6
Controllability of Systems
60
Credit 7
Thermal Comfort
62
Credit 8
Daylight & Views
64
Innovation & Design Process
66
Credit 1
Innovation in Design
66
Credit 2
LEED Accredited Professional
67
Project Checklist
Sustainable Sites
Y
Prereq 1
Y
?
N Credit 1
Y
?
N Credit 2
Y
?
N Credit 3
Y
?
N Credit 4.1
Y
?
N Credit 4.2
Y
?
N Credit 4.3
Y
?
N Credit 4.4
Y
?
N Credit 5.1
Y
?
N Credit 5.2
Y
?
N Credit 6.1
Y
?
N Credit 6.2
Y
?
N Credit 7.1
Y
?
N Credit 7.2
Y
?
N Credit 8
14 Possible Points
Erosion & Sedimentation Control
Required
Site Selection
1
Urban Redevelopment
1
Brownfield Redevelopment
1
Alternative Transportation, Public Transportation Access
1
Alternative Transportation, Bicycle Storage & Changing Rooms
1
Alternative Transportation, Alternative Fuel Vehicles
1
Alternative Transportation, Parking Capacity
1
Reduced Site Disturbance, Protect or Restore Open Space
1
Reduced Site Disturbance, Development Footprint
1
Stormwater Management, Rate and Quantity
1
Stormwater Management, Treatment
1
Heat Island Effect, Non-Roof
1
Heat Island Effect, Roof
1
Light Pollution Reduction
1
Water Efficiency
5 Possible Points
Y
?
N Credit 1.1 Water Efficient Landscaping, Reduce by 50%
1
Y
?
N Credit 1.2 Water Efficient Landscaping, No Potable Use or No Irrigation
1
Y
?
N Credit 2
Y
?
N Credit 3.1 Water Use Reduction, 20% Reduction
1
Y
?
N Credit 3.2 Water Use Reduction, 30% Reduction
1
Innovative Wastewater Technologies
Energy & Atmosphere
Y
Prereq 1
Y
Prereq 2
Y
Prereq 3
Y
?
N Credit 1
Y
?
N Credit 2.1
Y
?
N Credit 2.2
Y
?
N Credit 2.3
Y
?
N Credit 3
Y
?
N Credit 4
Y
?
N Credit 5
Y
?
N Credit 6
1
17 Possible Points
Fundamental Building Systems Commissioning
Minimum Energy Performance
CFC Reduction in HVAC&R Equipment
Optimize Energy Performance
Renewable Energy, 5%
Renewable Energy, 10%
Renewable Energy, 20%
Additional Commissioning
Ozone Depletion
Measurement & Verification
Green Power
Required
Required
Required
1–10
1
1
1
1
1
1
1
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Materials & Resources
Y
Prereq 1
Y
?
N Credit 1.1
Y
?
N Credit 1.2
Y
?
N Credit 1.3
Y
?
N Credit 2.1
Y
?
N Credit 2.2
Y
?
N Credit 3.1
Y
?
N Credit 3.2
Y
?
N Credit 4.1
Y
?
N Credit 4.2
Y
?
N Credit 5.1
Y
?
N Credit 5.2
Y
?
N Credit 6
Y
?
N Credit 7
13 Possible Points
Storage & Collection of Recyclables
Required
Building Reuse, Maintain 75% of Existing Shell
1
Building Reuse, Maintain 100% of Shell
1
Building Reuse, Maintain 100% Shell & 50% Non-Shell
1
Construction Waste Management, Divert 50%
1
Construction Waste Management, Divert 75%
1
Resource Reuse, Specify 5%
1
Resource Reuse, Specify 10%
1
Recycled Content, Specify 5% (p.c. + 1/2 p.i.)
1
1
Recycled Content, Specify 10% (p.c. + /2 p.i.)
1
Local/Regional Materials, 20% Manufactured Locally
1
Local/Regional Materials, of 20% in MRc5.1, 50% Harvested Locally 1
Rapidly Renewable Materials
1
Certified Wood
1
Indoor Environmental Quality
Y
Prereq 1
Y
Prereq 2
Y
?
N Credit 1
Y
?
N Credit 2
Y
?
N Credit 3.1
Y
?
N Credit 3.2
Y
?
N Credit 4.1
Y
?
N Credit 4.2
Y
?
N Credit 4.3
Y
?
N Credit 4.4
Y
?
N Credit 5
Y
?
N Credit 6.1
Y
?
N Credit 6.2
Y
?
N Credit 7.1
Y
?
N Credit 7.2
Y
?
N Credit 8.1
Y
?
N Credit 8.2
Minimum IAQ Performance
Environmental Tobacco Smoke (ETS) Control
Carbon Dioxide (CO2 ) Monitoring
Ventilation Effectiveness
Construction IAQ Management Plan, During Construction
Construction IAQ Management Plan, Before Occupancy
Low-Emitting Materials, Adhesives & Sealants
Low-Emitting Materials, Paints
Low-Emitting Materials, Carpet
Low-Emitting Materials, Composite Wood
Indoor Chemical & Pollutant Source Control
Controllability of Systems, Perimeter
Controllability of Systems, Non-Perimeter
Thermal Comfort, Comply with ASHRAE 55-1992
Thermal Comfort, Permanent Monitoring System
Daylight & Views, Daylight 75% of Spaces
Daylight & Views, Views for 90% of Spaces
Innovation & Design Process
Required
Required
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
5 Possible Points
Y
?
N Credit 1.1 Innovation in Design
1
Y
?
N Credit 1.2 Innovation in Design
1
Y
?
N Credit 1.3 Innovation in Design
1
Y
?
N Credit 1.4 Innovation in Design
1
Y
?
N Credit 2
LEED™ Accredited Professional
Project Totals
Certified 26-32 points
U.S. Green Building Council
vi
15 Possible Points
1
69 Possible Points
Silver 33-38 points
Gold 39-51 points
Platinum 52-69 points
Sustainable Sites
SS WE EA MR EQ ID
Prerequisite 1
Required
Erosion & Sedimentation Control
Intent
Control erosion to reduce negative impacts on water and air quality.
Requirements
Design a sediment and erosion control plan, specific to the site, that conforms to United States Environmental Protection Agency (EPA) Document
No. EPA 832/R-92-005 (September 1992), Storm Water Management for Construction Activities, Chapter 3, OR local erosion and sedimentation control
standards and codes, whichever is more stringent. The plan shall meet the
following objectives:
●
Prevent loss of soil during construction by stormwater runoff and/or
wind erosion, including protecting topsoil by stockpiling for reuse.
●
Prevent sedimentation of storm sewer or receiving streams.
●
Prevent polluting the air with dust and particulate matter.
Submittals
❏ Provide the LEED Letter Template, signed by the civil engineer or responsible party, declaring whether the project follows local erosion and sedimentation control standards or the referenced EPA standard. Provide a
brief list of the measures implemented. If local standards and codes are
followed, describe how they meet or exceed the referenced EPA standard.
Potential Technologies & Strategies
Adopt an erosion and sediment control plan for the project site during construction. Consider employing strategies such as temporary and permanent
seeding, mulching, earth dikes, silt fencing, sediment traps and sediment
basins.
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SS WE EA MR EQ ID
Credit 1
1 Point
Site Selection
Intent
Avoid development of inappropriate sites and reduce the environmental impact from
the location of a building on a site.
Requirements
Do not develop buildings, roads or parking areas on portions of sites that
meet any one of the following criteria:
●
Prime farmland as defined by the United States Department of Agriculture in the United States Code of Federal Regulations, Title 7, Volume 6, Parts 400 to 699, Section 657.5 (citation 7CFR657.5).
●
Land whose elevation is lower than 5 feet above the elevation of the
100-year flood as defined by the Federal Emergency Management
Agency (FEMA).
●
Land which is specifically identified as habitat for any species on
Federal or State threatened or endangered lists.
●
Within 100 feet of any water including wetlands as defined by United
States Code of Federal Regulations 40 CFR, Parts 230-233 and Part 22,
and isolated wetlands or areas of special concern identified by state
or local rule, OR greater than distances given in state or local regulations as defined by local or state rule or law, whichever is more
stringent.
●
Land which prior to acquisition for the project was public parkland,
unless land of equal or greater value as parkland is accepted in trade
by the public landowner (Park Authority projects are exempt).
Submittals
❏ Provide the LEED Letter Template, signed by the civil engineer or responsible party, declaring that the project site meets the credit requirements.
Potential Technologies & Strategies
During the site selection process, give preference to those sites that do not
include sensitive site elements and restrictive land types. Select a suitable
building location and design the building with the minimal footprint to minimize site disruption. Strategies include stacking the building program, tuckunder parking, and sharing facilities with neighbors.
U.S. Green Building Council
2
SS WE EA MR EQ ID
Credit 2
Development Density
1 Point
Intent
Channel development to urban areas with existing infrastructure, protect
greenfields and preserve habitat and natural resources.
Requirements
Increase localized density to conform to existing or desired density goals by
utilizing sites that are located within an existing minimum development density of 60,000 square feet per acre (two story downtown development).
Submittals
❏ Provide the LEED Letter Template, signed by the civil engineer, architect
or other responsible party, declaring that the project has achieved the
required development densities. Provide density for the project and for
the surrounding area.
❏ Provide an area plan with the project location highlighted.
Potential Technologies & Strategies
During the site selection process, give preference to urban sites.
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SS WE EA MR EQ ID
Credit 3
1 Point
Brownfield Redevelopment
Intent
Rehabilitate damaged sites where development is complicated by real or
perceived environmental contamination, reducing pressure on undeveloped
land.
Requirements
Develop on a site documented as contaminated (by means of an ASTM E190397 Phase II Environmental Site Assessment) OR on a site classified as a
brownfield by a local, state or federal government agency. Effectively remediate
site contamination.
Submittals
❏ Provide a copy of the pertinent sections of the ASTM E1903-97 Phase II
Environmental Site Assessment documenting the site contamination OR
provide a letter from a local, state or federal regulatory agency confirming that the site is classified as a brownfield by that agency.
❏ Provide the LEED Letter Template, signed by the civil engineer or responsible party, declaring the type of damage that existed on the site and
describing the remediation performed.
Potential Technologies & Strategies
During the site selection process, give preference to brownfield sites. Identify
tax incentives and property cost savings. Develop and implement a site
remediation plan using strategies such as pump-and-treat, bioreactors, land
farming and in-situ remediation.
U.S. Green Building Council
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SS WE EA MR EQ ID
Credit 4.1
Alternative Transportation: Public Transportation Access
1 Point
Intent
Reduce pollution and land development impacts from automobile use.
Requirements
Locate project within 1/2 mile of a commuter rail, light rail or subway station
or 1/4 mile of two or more public or campus bus lines usable by building
occupants.
Submittals
❏ Provide the LEED Letter Template, signed by an appropriate party, declaring that
the project building(s) are located within required proximity to mass transit.
❏ Provide an area drawing or transit map highlighting the building
location and the fixed rail stations and bus lines, and indicate the distances between them. Include a scale bar for distance measurement.
Potential Technologies & Strategies
Perform a transportation survey of future building occupants to identify transportation needs. Site the building near mass transit.
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SS WE EA MR EQ ID
Credit 4.2
1 Point
Alternative Transportation:
Bicycle Storage & Changing Rooms
Intent
Reduce pollution and land development impacts from automobile use.
Requirements
For commercial or institutional buildings, provide secure bicycle storage with
convenient changing/shower facilities (within 200 yards of the building) for
5% or more of regular building occupants. For residential buildings, provide
covered storage facilities for securing bicycles for 15% or more of building
occupants in lieu of changing/shower facilities.
Submittals
❏ For commercial projects: provide the LEED Letter Template, signed by
the Architect or responsible party, declaring the distance to bicycle storage and showers from the building entrance and demonstrating that these
facilities can accommodate at least 5% of building occupants.
OR
❏ For residential projects: provide the LEED Letter Template, signed by the
architect or responsible party, declaring the design occupancy for the
buildings, number of covered bicycle storage facilities for securing bicycles, and demonstrating that these facilities can accommodate at least
15% of building occupants.
Potential Technologies & Strategies
Design the building with transportation amenities such as bicycle racks and
showering/changing facilities.
U.S. Green Building Council
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SS WE EA MR EQ ID
Credit 4.3
Alternative Transportation: Alternative Fuel Vehicles
1 Point
Intent
Reduce pollution and land development impacts from automobile use.
Requirements
Provide alternative fuel vehicles for 3% of building occupants AND provide
preferred parking for these vehicles, OR install alternative-fuel refueling stations for 3% of the total vehicle parking capacity of the site. Liquid or gaseous fueling facilities must be separately ventilated or located outdoors.
Submittals
❏ Provide the LEED Letter Template and proof of ownership of, or 2 year
lease agreement for, alternative fuel vehicles and calculations indicating
that alternative fuel vehicles will serve 3% of building occupants. Provide
site drawings or parking plan highlighting preferred parking for alternative fuel vehicles.
OR
❏ Provide the LEED Letter Template with specifications and site drawings
highlighting alternative-fuel refueling stations. Provide calculations demonstrating that these facilities accommodate 3% or more of the total vehicle parking capacity.
Potential Technologies & Strategies
Provide transportation amenities such as alternative fuel refueling stations
and carpool/vanpool programs. Consider sharing the costs and benefits of
refueling stations with neighbors.
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SS WE EA MR EQ ID
Credit 4.4
1 Point
Alternative Transportation: Parking Capacity
Intent
Reduce pollution and land development impacts from single occupancy vehicle use.
Requirements
Size parking capacity to meet, but not exceed, minimum local zoning requirements AND provide preferred parking for carpools or vanpools capable
of serving 5% of the building occupants; OR add no new parking for rehabilitation projects AND provide preferred parking for carpools or vanpools capable of serving 5% of the building occupants.
Submittals
❏ For new projects: provide the LEED Letter Template, signed by the civil
engineer or responsible party, stating any relevant minimum zoning requirements and declaring that parking capacity is sized to meet, but not
exceed them. State the number of preferred parking spaces for carpools.
OR
❏ For rehabilitation projects: provide the LEED Letter Template, signed by
the civil engineer or responsible party, declaring that no new parking
capacity has been added.State the number of preferred parking spaces
for carpools.
Potential Technologies & Strategies
Minimize parking lot/garage size. Consider sharing parking facilities with
adjacent buildings.
U.S. Green Building Council
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SS WE EA MR EQ ID
Credit 5.1
Reduced Site Disturbance: Protect or Restore Open Space
1 Point
Intent
Conserve existing natural areas and restore damaged areas to provide habitat
and promote biodiversity.
Requirements
On greenfield sites, limit site disturbance including earthwork and clearing of
vegetation to 40 feet beyond the building perimeter, 5 feet beyond primary
roadway curbs, walkways and main utility branch trenches, and 25 feet beyond constructed areas with permeable surfaces (such as pervious paving
areas, stormwater detention facilities and playing fields) that require additional staging areas in order to limit compaction in the constructed area; OR,
on previously developed sites, restore a minimum of 50% of the site area
(excluding the building footprint) by replacing impervious surfaces with native or adapted vegetation.
Submittals
❏ For greenfield sites: provide the LEED Letter Template, signed by the civil
engineer or responsible party, demonstrating and declaring that site disturbance (including earthwork and clearing of vegetation) has been limited to 40 feet beyond the building perimeter, 5 feet beyond primary
roadway curbs, walk ways and main utility branch trenches, and 25 feet
beyond constructed areas with permeable surfaces. Provide site drawings
and specifications highlighting limits of construction disturbance.
OR
❏ For previously developed sites: provide a LEED Letter Template, signed
by the civil engineer or responsible party, declaring and describing restoration of degraded habitat areas. Include highlighted site drawings with
area calculations demonstrating that 50% of the site area that does not
fall within the building footprint has been restored.
Potential Technologies & Strategies
Perform a site survey to identify site elements and adopt a master plan for
development of the project site. Select a suitable building location and design
the building with a minimal footprint to minimize site disruption. Strategies
include stacking the building program, tuck-under parking and sharing facilities with neighbors. Establish clearly marked construction boundaries to minimize disturbance of the existing site and restore previously degraded areas to
their natural state.
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SS WE EA MR EQ ID
Credit 5.2
1 Point
Reduced Site Disturbance: Development Footprint
Intent
Conserve existing natural areas and restore damaged areas to provide habitat
and promote biodiversity.
Requirements
Reduce the development footprint (defined as entire building footprint, access roads and parking) to exceed the local zoning’s open space requirement
for the site by 25%. For areas with no local zoning requirements (e.g., some
university campuses and military bases), designate open space area adjacent
to the building that is equal to the development footprint.
Submittals
❏ Provide a copy of the local zoning requirements highlighting the criteria
for open space. Provide the LEED Letter Template, signed by the civil
engineer or responsible party, demonstrating and declaring that the open
space exceeds the local zoning open space requirement for the site by
25%.
OR
❏ For areas with no local zoning requirements (e.g., some university campuses and military bases), designate open space area adjacent to the
building that is equal to the development footprint. Provide a letter from
the property owner stating that the open space will be conserved for the
life of the building.
Potential Technologies & Strategies
Perform a site survey to identify site elements and adopt a master plan for
development of the project site. Select a suitable building location and design
the building with a minimal footprint to minimize site disruption. Strategies
include stacking the building program, tuck-under parking and sharing facilities with neighbors. Establish clearly marked construction boundaries to minimize disturbance of existing and restore previously degraded areas to their
natural state.
U.S. Green Building Council
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SS WE EA MR EQ ID
Credit 6.1
Stormwater Management: Rate and Quantity
1 Point
Intent
Limit disruption and pollution of natural water flows by managing stormwater
runoff.
Requirements
If existing imperviousness is less than or equal to 50%, implement a stormwater
management plan that prevents the post-development 1.5 year, 24 hour peak
discharge rate from exceeding the pre-development 1.5 year, 24 hour peak
discharge rate.
OR
If existing imperviousness is greater than 50%, implement a stormwater management plan that results in a 25% decrease in the rate and quantity of
stormwater runoff.
Submittals
❏ Provide the LEED Letter Template, signed by the civil engineer or responsible party, declaring that the post-development 1.5 year, 24 hour peak
discharge rate does not exceed the pre-development 1.5 year 24 hour
peak discharge rate. Include calculations demonstrating that existing site
imperviousness is less than or equal to 50%.
OR
❏ Provide the LEED Letter Template, signed by the civil engineer or responsible party, declaring and demonstrating that the stormwater management strategies result in at least a 25% decrease in the rate and quantity of
stormwater runoff. Include calculations demonstrating that existing site
imperviousness exceeds 50%.
Potential Technologies & Strategies
Design the project site to maintain natural stormwater flows by promoting
infiltration. Specify garden roofs and pervious paving to minimize impervious surfaces. Reuse stormwater volumes generated for non-potable uses such
as landscape irrigation, toilet and urinal flushing and custodial uses.
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SS WE EA MR EQ ID
Credit 6.2
1 Point
Stormwater Management: Treatment
Intent
Limit disruption of natural water flows by eliminating stormwater runoff,
increasing on-site infiltration and eliminating contaminants.
Requirements
Construct site stormwater treatment systems designed to remove 80% of the
average annual post-development total suspended solids (TSS) and 40% of
the average annual post-development total phosphorous (TP) based on the
average annual loadings from all storms less than or equal to the 2-year/24hour storm. Do so by implementing Best Management Practices (BMPs) outlined in Chapter 4, Part 2 (Urban Runoff ), of the United States Environmental
Protection Agency’s (EPA’s) Guidance Specifying Management Measures for Sources
of Nonpoint Pollution in Coastal Waters, January 1993 (Document No. EPA-840-B-92002) or the local government’s BMP document (whichever is more stringent).
Submittals
❏ Provide the LEED Letter Template, signed by the civil engineer or responsible party, declaring that the design complies with or exceeds EPA or
local government Best Management Practices (whichever set is more stringent) for removal of total suspended solids and total phosphorous.
Potential Technologies & Strategies
Design mechanical or natural treatment systems such as constructed wetlands, vegetated filter strips and bioswales to treat the site’s stormwater.
U.S. Green Building Council
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SS WE EA MR EQ ID
Credit 7.1
Heat Island Effect: Non-Roof
1 Point
Intent
Reduce heat islands (thermal gradient differences between developed and
undeveloped areas) to minimize impact on microclimate and human and
wildlife habitat.
Requirements
Provide shade (within 5 years) and/or use light-colored/high-albedo materials (reflectance of at least 0.3) and/or open grid pavement for at least 30% of
the site’s non-roof impervious surfaces, including parking lots, walkways,
plazas, etc.; OR place a minimum of 50% of parking spaces underground or
covered by structured parking; OR use an open-grid pavement system (less
than 50% impervious) for a minimum of 50% of the parking lot area.
Submittals
❏ Provide the LEED Letter Template, signed by the civil engineer or responsible party, referencing the site plan to demonstrate areas of paving, landscaping (list species) and building footprint, and declaring that:
❏
A minimum of 30% of non-roof impervious surfaces areas are constructed with high-albedo materials and/or open grid pavement and/
or will be shaded within five years
❏
OR a minimum of 50% of parking spaces have been placed underground or are covered by structured parking
❏
OR an open-grid pavement system (less than 50% impervious) has
been used for a minimum of 50% of the parking lot area.
Potential Technologies & Strategies
Shade constructed surfaces on the site with landscape features and minimize
the overall building footprint. Consider replacing constructed surfaces (i.e. roof,
roads, sidewalks, etc.) with vegetated surfaces such as garden roofs and open
grid paving or specify high-albedo materials to reduce the heat absorption.
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Credit 7.2
1 Point
Heat Island Effect: Roof
Intent
Reduce heat islands (thermal gradient differences between developed and
undeveloped areas) to minimize impact on microclimate and human and
wildlife habitat.
Requirements
Use ENERGY STAR® compliant (highly reflective) AND high emissivity roofing
(emissivity of at least 0.9 when tested in accordance with ASTM 408) for a
minimum of 75% of the roof surface; OR install a “green” (vegetated) roof for
at least 50% of the roof area. Combinations of high albedo and vegetated roof
can be used providing they collectively cover 75% of the roof area.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, civil engineer
or responsible party, referencing the building plan and declaring that the
roofing materials comply with the ENERGY STAR® Label requirements and
have a minimum emissivity of 0.9. Demonstrate that high-albedo and
vegetated roof areas combined constitute at least 75% of the total roof area.
OR
❏ Provide the LEED Letter Template, signed by the architect, civil engineer
or responsible party, referencing the building plan and demonstrating
that vegetated roof areas constitute at least 50% of the total roof area.
Potential Technologies & Strategies
Visit the E NERGY S TAR ® Web site, www.energystar.gov, to look for compliant
products. Consider installing high-albedo and vegetated roofs to reduce heat
absorption.
U.S. Green Building Council
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Credit 8
Light Pollution Reduction
1 Point
Intent
Eliminate light trespass from the building and site, improve night sky access
and reduce development impact on nocturnal environments.
Requirements
Meet or provide lower light levels and uniformity ratios than those recommended by the Illuminating Engineering Society of North America (IESNA)
Recommended Practice Manual: Lighting for Exterior Environments (RP-33-99). Design exterior lighting such that all exterior luminaires with more than 1000
initial lamp lumens are shielded and all luminaires with more than 3500
initial lamp lumens meet the Full Cutoff IESNA Classification. The maximum
candela value of all interior lighting shall fall within the building (not out
through windows) and the maximum candela value of all exterior lighting
shall fall within the property. Any luminaire within a distance of 2.5 times its
mounting height from the property boundary shall have shielding such that
no light from that luminaire crosses the property boundary.
Submittals
❏ Provide the LEED Letter Template, signed by an appropriate party, declaring that the credit requirements have been met.
Potential Technologies & Strategies
Adopt site lighting criteria to maintain safe light levels while avoiding off-site
lighting and night sky pollution. Minimize site lighting where possible and
model the site lighting using a computer model. Technologies to reduce light
pollution include full cutoff luminaries, low-reflectance surfaces and lowangle spotlights.
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Credit 1.1
1 Point
Water Efficiency
Water Efficient Landscaping: Reduce by 50%
Intent
Limit or eliminate the use of potable water for landscape irrigation.
Requirements
Use high-efficiency irrigation technology OR use captured rain or recycled
site water to reduce potable water consumption for irrigation by 50% over
conventional means.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, engineer or
responsible party, declaring that potable water consumption for site irrigation has been reduced by 50%. Include a brief narrative of the equipment used and/or the use of drought-tolerant or native plants.
Potential Technologies & Strategies
Perform a soil/climate analysis to determine appropriate landscape types and
design the landscape with indigenous plants to reduce or eliminate irrigation
requirements. Use high-efficiency irrigation systems and consider using
stormwater and/or greywater for irrigation.
U S Green Building Council
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Credit 1.2
Water Efficient Landscaping:
No Potable Use or No Irrigation
1 Point
in addition to
WE 1.1
Intent
Limit or eliminate the use of potable water for landscape irrigation.
Requirements
Use only captured rain or recycled site water to eliminate all potable water
use for site irrigation (except for initial watering to establish plants), OR do
not install permanent landscape irrigation systems.
Submittals
❏ Provide the LEED Letter Template, signed by the responsible architect
and/or engineer, declaring that the project site will not use potable water
for irrigation. Include a narrative describing the captured rain system, the
recycled site water system, and their holding capacity. List all the plant
species used. Include calculations demonstrating that irrigation requirements can be met from captured rain or recycled site water.
OR
❏ Provide the LEED Letter Template, signed by the landscape architect or
responsible party, declaring that the project site does not have a permanent landscape irrigation system. Include a narrative describing how the
landscape design allows for this.
Potential Technologies & Strategies
Perform a soil/climate analysis to determine appropriate landscape types and
design the landscape with indigenous plants to reduce or eliminate irrigation
requirements. Consider using stormwater and/or greywater for irrigation.
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Credit 2
1 Point
Innovative Wastewater Technologies
Intent
Reduce generation of wastewater and potable water demand, while increasing the local aquifer recharge.
Requirements
Reduce the use of municipally provided potable water for building sewage
conveyance by a minimum of 50%, OR treat 100% of wastewater on site to
tertiary standards.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, MEP engineer
or responsible party, declaring that water for building sewage conveyance will be reduced by at least 50%. Include the spreadsheet calculation
and a narrative demonstrating the measures used to reduce wastewater
by at least 50% from baseline conditions.
OR
❏ Provide the LEED Letter Template, signed by the civil engineer or responsible party, declaring that 100% of wastewater will be treated to tertiary
standards on site. Include a narrative describing the on-site wastewater
treatment system.
Potential Technologies & Strategies
Specify high-efficiency fixtures and dry fixtures such as composting toilets
and waterless urinals to reduce wastewater volumes. Consider reusing
stormwater or greywater for sewage conveyance or on-site wastewater treatment systems (mechanical and/or natural).
U S Green Building Council
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SS WE EA MR EQ ID
Credit 3.1
Water Use Reduction: 20% Reduction
1 Point
Intent
Maximize water efficiency within buildings to reduce the burden on municipal water supply and wastewater systems.
Requirements
Employ strategies that in aggregate use 20% less water than the water use
baseline calculated for the building (not including irrigation) after meeting
the Energy Policy Act of 1992 fixture performance requirements.
Submittals
❏ Provide the LEED Letter Template, signed by the MEP engineer or responsible party, declaring that the project uses 20% less water than the
baseline fixture performance requirements of the Energy Policy Act of
1992.
❏ Provide the spreadsheet calculation demonstrating that water-consuming
fixtures specified for the stated occupancy and use of the building reduce
occupancy-based potable water consumption by 20% compared to baseline
conditions.
Potential Technologies & Strategies
Estimate the potable and non-potable water needs for the building. Use highefficiency fixtures, dry fixtures such as composting toilets and waterless urinals, and occupant sensors to reduce the potable water demand. Consider
reuse of stormwater and greywater for non-potable applications such as toilet and urinal flushing, mechanical systems and custodial uses.
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Credit 3.2
1 Point
in addition to
WE 3.1
Water Use Reduction: 30% Reduction
Intent
Maximize water efficiency within buildings to reduce the burden on municipal water supply and wastewater systems.
Requirements
Employ strategies that in aggregate use 30% less water than the water use
baseline calculated for the building (not including irrigation) after meeting
the Energy Policy Act of 1992 fixture performance requirements.
Submittals
❏ Provide the LEED Letter Template, signed by the MEP engineer or responsible party, declaring that the project uses 30% less water than the
baseline fixture performance requirements of the Energy Policy Act of
1992.
❏ Provide the spreadsheet calculation demonstrating that water-consuming
fixtures specified for the stated occupancy and use of the building reduce
occupancy-based potable water consumption by 30% compared to baseline
conditions.
Potential Technologies & Strategies
Estimate the potable and non-potable water needs for the building. Use highefficiency fixtures, dry fixtures such as composting toilets and waterless urinals, and occupant sensors to reduce the potable water demand. Consider
reuse of stormwater and greywater for non-potable applications such as toilet and urinal flushing, mechanical systems and custodial uses.
U S Green Building Council
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Energy & Atmosphere
SS WE EA MR EQ ID
Prerequisite 1
Required
Fundamental Building Systems Commissioning
Intent
Verify and ensure that fundamental building elements and systems are designed, installed and calibrated to operate as intended.
Requirements
Implement or have a contract in place to implement the following fundamental best practice commissioning procedures.
●
Engage a commissioning team that does not include individuals directly responsible for project design or construction management.
●
Review the design intent and the basis of design documentation.
●
Incorporate commissioning requirements into the construction documents.
●
Develop and utilize a commissioning plan.
●
Verify installation, functional performance, training and operation and
maintenance documentation.
●
Complete a commissioning report.
Submittals
❏ Provide the LEED Letter Template, signed by the owner or commissioning agent(s), confirming that the fundamental commissioning requirements have been successfully executed or will be provided under existing contract(s).
Potential Technologies & Strategies:
Engage a commissioning authority and adopt a commissioning plan. Include
commissioning requirements in bid documents and task the commissioning
agent to produce a commissioning report once commissioning activities are
completed.
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Prerequisite 2
Required
Minimum Energy Performance
Intent
Establish the minimum level of energy efficiency for the base building and
systems.
Requirements
Design the building to comply with ASHRAE/IESNA Standard 90.1-1999 (without amendments) or the local energy code, whichever is more stringent.
Submittals
❏ Provide a LEED Letter Template, signed by a licensed professional engineer or architect, stating that the building complies with ASHRAE/IESNA
90.1-1999 or local energy codes. If local energy codes were applied,
demonstrate that the local code is equivalent to, or more stringent than,
ASHRAE/IESNA 90.1-1999 (without amendments).
Potential Technologies & Strategies:
Design the building envelope and systems to maximize energy performance.
Use a computer simulation model to assess the energy performance and
identify the most cost effective energy measures. Quantify energy performance compared to the baseline building.
U S Green Building Council
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SS WE EA MR EQ ID
Prerequisite 3
CFC Reduction in HVAC&R Equipment
Required
Intent
Reduce ozone depletion.
Requirements
Zero use of CFC-based refrigerants in new base building HVAC&R systems.
When reusing existing base building HVAC equipment, complete a comprehensive CFC phase-out conversion.
Submittals
❏ Provide a LEED Letter Template, signed by a licensed professional engineer or architect, declaring that the building’s HVAC&R systems do not
use CFC-based refrigerants.
Potential Technologies & Strategies:
When reusing existing HVAC systems, conduct an inventory to identify equipment that uses CFC refrigerants and adopt a replacement schedule for these
refrigerants. For new buildings, specify new HVAC equipment that uses no
CFC refrigerants.
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Credit 1
1–10 Points
Optimize Energy Performance
Intent
Achieve increasing levels of energy performance above the prerequisite standard to reduce environmental impacts associated with excessive energy use.
Requirements
Reduce design energy cost compared to the energy cost budget for energy
systems regulated by ASHRAE/IESNA Standard 90.1-1999 (without amendments), as demonstrated by a whole building simulation using the Energy
Cost Budget Method described in Section 11 of the Standard.
New Bldgs. Existing Bldgs.
Points
15%
5%
1
20%
10%
2
25%
15%
3
30%
20%
4
35%
25%
5
40%
30%
6
45%
35%
7
50%
40%
8
55%
45%
9
60%
50%
10
Regulated energy systems include HVAC (heating, cooling, fans and pumps),
service hot water and interior lighting. Non-regulated systems include plug
loads, exterior lighting, garage ventilation and elevators (vertical transportation). Two methods may be used to separate energy consumption for regulated systems. The energy consumption for each fuel may be prorated according to the fraction of energy used by regulated and non-regulated energy. Alternatively, separate meters (accounting) may be created in the energy simulation program for regulated and non-regulated energy uses.
If an analysis has been made comparing the proposed design to local energy
standards and a defensible equivalency (at minimum) to ASHRAE/IESNA Standard 90.1-1999 has been established, then the comparison against the local
code may be used in lieu of the ASHRAE Standard.
Project teams are encouraged to apply for innovation credits if the energy
consumption of non-regulated systems is also reduced.
U S Green Building Council
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Credit 1
Optimize Energy Performance
1–10 Points
(continued)
Submittals
❏ Complete the LEED Letter Template incorporating a quantitative summary table showing the energy saving strategies incorporated in the building design.
❏ Demonstrate via summary printout from energy simulation software that
the design energy cost is less than the energy cost budget as defined in
ASHRAE/IESNA 90.1-1999, Section 11.
Potential Technologies & Strategies
Design the building envelope and building systems to maximize energy performance. Use a computer simulation model to assess the energy performance and identify the most cost-effective energy efficiency measures. Quantify
energy performance as compared to a baseline building.
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Credit 2.1
1 Point
Renewable Energy: 5%
Intent
Encourage and recognize increasing levels of on-site renewable energy selfsupply in order to reduce environmental impacts associated with fossil fuel
energy use.
Requirements
Supply at least 5% of the building’s total energy use (as expressed as a fraction of annual energy cost) through the use of on-site renewable energy
systems.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or responsible party, declaring that at least 5% of the building’s energy is
provided by on-site renewable energy. Include a narrative describing onsite renewable energy systems installed in the building and calculations
demonstrating that at least 5% of total energy costs are supplied by the
renewable energy system(s).
Potential Technologies & Strategies
Assess the project for non-polluting and renewable energy potential including solar, wind, geothermal, low-impact hydro, biomass and bio-gas strategies. When applying these strategies, take advantage of net metering with the
local utility.
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Credit 2.2
Renewable Energy: 10%
1 Point
in addition to
EA 2.1
Intent
Encourage and recognize increasing levels of self-supply through renewable
technologies to reduce environmental impacts associated with fossil fuel energy use.
Requirements
Supply at least 10% of the building’s total energy use (as expressed as a
fraction of annual energy cost) through the use of on-site renewable energy
systems.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or responsible party, declaring that at least 10% of the building’s energy is
provided by on-site renewable energy. Include a narrative describing onsite renewable energy systems installed in the building and calculations
demonstrating that at least 10% of total energy costs are supplied by the
renewable energy system(s).
Potential Technologies & Strategies
Assess the project for non-polluting renewable energy potential including
solar, wind, geothermal, low-impact hydro, biomass and bio-gas strategies.
When applying these strategies, take advantage of net metering with the
local utility.
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Credit 2.3
1 Point
in addition to
EA 2.1 and 2.2
Renewable Energy: 20%
Intent
Encourage and recognize increasing levels of self-supply through renewable
technologies to reduce environmental impacts associated with fossil fuel energy use.
Requirements
Supply at least 20% of the building’s total energy use (as expressed as a
fraction of annual energy cost) through the use of on-site renewable energy
systems.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or responsible party, declaring that at least 20% of the building’s energy is
provided by on-site renewable energy. Include a narrative describing onsite renewable energy systems installed in the building and calculations
demonstrating that at least 20% of total energy costs are supplied by the
renewable energy system(s).
Potential Technologies & Strategies
Assess the project for non-polluting and renewable energy potential including solar, wind, geothermal, low-impact hydro, biomass and bio-gas strategies. When applying these strategies, take advantage of net metering with the
local utility.
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Credit 3
Additional Commissioning
1 Point
Intent
Verify and ensure that the entire building is designed, constructed and calibrated to operate as intended.
Requirements
In addition to the Fundamental Building Commissioning prerequisite, implement or have a contract in place to implement the following additional commissioning tasks:
1. A commissioning authority independent of the design team shall conduct a review of the design prior to the construction documents phase.
2. An independent commissioning authority shall conduct a review of
the construction documents near completion of the construction document development and prior to issuing the contract documents for
construction.
3. An independent commissioning authority shall review the contractor
submittals relative to systems being commissioned.
4. Provide the owner with a single manual that contains the information
required for re-commissioning building systems.
5. Have a contract in place to review building operation with O&M staff,
including a plan for resolution of outstanding commissioning-related
issues within one year after construction completion date.
Submittals
❏ Provide the LEED Letter Template, signed by the owner or independent
commissioning agent(s) as appropriate, confirming that the required additional commissioning tasks have been successfully executed or will be
provided under existing contract(s).
Potential Technologies & Strategies
Engage the commissioning authority early in the design phases.
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Credit 4
1 Point
Ozone Protection
Intent
Reduce ozone depletion and support early compliance with the Montreal
Protocol.
Requirements
Install base building level HVAC and refrigeration equipment and fire suppression systems that do not contain HCFCs or Halons.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or engineer,
stating that HVAC&R systems as-built are free of HCFCs and Halons.
Potential Technologies & Strategies
When reusing buildings, inventory existing building systems using refrigerants and fire suppression chemicals and replace those that contain HCFCs or
Halons. For new buildings, specify refrigeration and fire suppression systems
that use no HCFCs or Halons.
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Credit 5
Measurement and Verification
1 Point
Intent
Provide for the ongoing accountability and optimization of building energy
and water consumption performance over time.
Requirements
Install continuous metering equipment for the following end-uses:
●
Lighting systems and controls
●
Constant and variable motor loads
●
Variable frequency drive (VFD) operation
●
Chiller efficiency at variable loads (kW/ton)
●
Cooling load
●
Air and water economizer and heat recovery cycles
●
Air distribution static pressures and ventilation air volumes
●
Boiler efficiencies
●
Building-related process energy systems and equipment
●
Indoor water risers and outdoor irrigation systems
Develop a Measurement and Verification plan that incorporates the monitoring information from the above end-uses and is consistent with Option B, C
or D of the 2001 International Performance Measurement & Verification Protocol
(IPMVP) Volume I: Concepts and Options for Determining Energy and Water Savings.
Submittals
❏ Provide the LEED Letter Template, signed by the licensed engineer or
other responsible party, indicating that metering equipment has been
installed for each end-use and declaring the option to be followed under
IPMVP version 2001.
❏ Provide a copy of the M&V plan following IPMVP, 2001version, including
an executive summary.
Potential Technologies & Strategies
Model the energy and water systems to predict savings. Design the building
with equipment to measure energy and water performance. Draft a Measurement & Verification Plan to apply during building operation that compares
predicted savings to those actually achieved in the field.
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Credit 6
1 Point
Green Power
Intent
Encourage the development and use of grid-source, renewable energy technologies on a net zero pollution basis.
Requirements
Provide at least 50% of the building’s electricity from renewable sources by
engaging in at least a two-year renewable energy contract. Renewable sources
are as defined by the Center for Resource Solutions (CRS) Green-e products
certification requirements.
Submittals
❏ Provide the LEED Letter Template, signed by the owner or other responsible party, documenting that the supplied renewable power is equal to
50% of the project’s energy consumption and the sources meet the Greene definition of renewable energy.
❏ Provide a copy of the two-year electric utility purchase contract for power
generated from renewable sources.
Potential Technologies & Strategies
Determine the energy needs of the building and investigate opportunities to engage in a
green power contract with the local utility. Green power is derived from solar, wind, geothermal, biomass or low-impact hydro sources. Green power may be procured from a
Green-e certified power marketer, a Green-e accredited utility program, through Green-e
certified Tradable Renewable Certificates, or from a supply that meets the Green-e renewable power definition.Visit www.green-e.org for details about the Green-e program.
U S Green Building Council
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Materials & Resources
SS WE EA MR EQ ID
Prerequisite 1
Required
Storage & Collection of Recyclables
Intent
Facilitate the reduction of waste generated by building occupants that is
hauled to and disposed of in landfills.
Requirements
Provide an easily accessible area that serves the entire building and is dedicated to the separation, collection and storage of materials for recycling including (at a minimum) paper, corrugated cardboard, glass, plastics and metals.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or owner, declaring that the area dedicated to recycling is easily accessible and accommodates the building’s recycling needs.
❏ Provide a plan showing the area(s) dedicated to recycled material collection and storage.
Potential Technologies & Strategies
Designate an area for recyclable collection and storage that is appropriately
sized and located in a convenient area. Identify local waste handlers and
buyers for glass, plastic, office paper, newspaper, cardboard and organic
wastes. Instruct occupants on building recycling procedures. Consider employing cardboard balers, aluminum can crushers, recycling chutes and other
waste management technologies to further enhance the recycling program.
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Credit 1.1
1 Point
Building Reuse:
Maintain 75% of Existing Walls, Floors and Roof
Intent
Extend the life cycle of existing building stock, conserve resources, retain
cultural resources, reduce waste and reduce environmental impacts of new
buildings as they relate to materials manufacturing and transport.
Requirements
Maintain at least 75% of existing building structure and shell (exterior skin
and framing, excluding window assemblies and non-structural roofing material).
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or other
responsible party, listing the retained elements and declaring that the
credit requirements have been met.
Potential Technologies & Strategies
Consider reuse of existing buildings, including structure, shell and non-shell
elements. Remove elements that pose contamination risk to building occupants and upgrade outdated components such as windows, mechanical systems and plumbing fixtures. Quantify the extent of building reuse.
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Credit 1.2
Building Reuse:
Maintain 100% of Existing Walls, Floors and Roof
1 Point
in addition to
MR 1.1
Intent
Extend the life cycle of existing building stock, conserve resources, retain
cultural resources, reduce waste and reduce environmental impacts of new
buildings as they relate to materials manufacturing and transport.
Requirements
Maintain an additional 25% (100% total) of existing building structure and
shell (exterior skin and framing, excluding window assemblies and nonstructural roofing material).
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or other
responsible party, demonstrating the retained elements and declaring that
the credit requirements have been met.
Potential Technologies & Strategies
Consider reuse of existing buildings, including structure, shell and non-shell
elements. Remove elements that pose contamination risk to building occupants and upgrade outdated components such as windows, mechanical systems and plumbing fixtures. Quantify the extent of building reuse.
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SS WE EA MR EQ ID
Credit 1.3
1 Point
in addition to
MR 1.1 and 1.2
Building Reuse: Maintain 100% of Shell/Structure and 50%
of Non-Shell/Non-Structure
Intent
Extend the life cycle of existing building stock, conserve resources, retain
cultural resources, reduce waste and reduce environmental impacts of new
buildings as they relate to materials manufacturing and transport.
Requirements
Maintain 100% of existing building structure and shell (exterior skin and
framing, excluding window assemblies and non-structural roofing material)
AND at least 50% of non-shell areas (interior walls, doors, floor coverings
and ceiling systems).
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or other
responsible party, demonstrating the retained elements and declaring that
the credit requirements have been met.
Potential Technologies & Strategies
Consider reuse of existing buildings, including structure, shell and non-shell
elements. Remove elements that pose contamination risk to building occupants and upgrade outdated components such as windows, mechanical systems and plumbing fixtures. Quantify the extent of building reuse.
U S Green Building Council
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SS WE EA MR EQ ID
Credit 2.1
Construction Waste Management:
Divert 50% From Landfill
1 Point
Intent
Divert construction, demolition and land clearing debris from landfill disposal. Redirect recyclable recovered resources back to the manufacturing
process. Redirect reusable materials to appropriate sites.
Requirements
Develop and implement a waste management plan, quantifying material diversion goals. Recycle and/or salvage at least 50% of construction, demolition and land clearing waste. Calculations can be done by weight or volume,
but must be consistent throughout.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or other
responsible party, tabulating the total waste material, quantities diverted
and the means by which diverted, and declaring that the credit requirements have been met.
Potential Technologies & Strategies
Establish goals for landfill diversion and adopt a construction waste management plan to achieve these goals. Consider recycling land clearing debris,
cardboard, metal, brick, concrete, plastic, clean wood, glass, gypsum wallboard, carpet and insulation. Designate a specific area on the construction
site for recycling and track recycling efforts throughout the construction process. Identify construction haulers and recyclers to handle the designated
materials. Note that salvage may include donation of materials to charitable
organizations such as Habitat for Humanity.
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Credit 2.2
1 Point
in addition to
MR 2.1
Construction Waste Management:
Divert 75% From Landfill
Intent
Divert construction, demolition and land clearing debris from landfill disposal. Redirect recyclable recovered resources back to the manufacturing
process. Redirect reusable materials to appropriate sites.
Requirements
Develop and implement a waste management plan, quantifying material diversion goals. Recycle and/or salvage an additional 25% (75% total) of construction, demolition and land clearing waste. Calculations can be done by
weight or volume, but must be consistent throughout.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or other
responsible party, tabulating the total waste material, quantities diverted
and the means by which diverted, and declaring that the credit requirements have been met.
Potential Technologies & Strategies
Establish goals for landfill diversion and adopt a construction waste management plan to achieve these goals. Consider recycling land clearing debris,
cardboard, metal, brick, concrete, plastic, clean wood, glass, gypsum wallboard, carpet and insulation. Designate a specific area on the construction
site for recycling and track recycling efforts throughout the construction process. Identify construction haulers and recyclers to handle the designated
materials. Note that salvage may include donation of materials to charitable
organizations such as Habitat for Humanity.
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SS WE EA MR EQ ID
Credit 3.1
Resource Reuse: 5%
1 Point
Intent
Reuse building materials and products in order to reduce demand for virgin
materials and to reduce waste, thereby reducing impacts associated with the
extraction and processing of virgin resources.
Requirements
Use salvaged, refurbished or reused materials, products and furnishings for at
least 5% of building materials.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or other
responsible party, declaring that the credit requirements have been met
and listing each material or product used to meet the credit. Include
details demonstrating that the project incorporates the required percentage of reused materials and products and showing their costs and the
total cost of materials for the project.
Potential Technologies & Strategies
Identify opportunities to incorporate salvaged materials into building design
and research potential material suppliers. Consider salvaged materials such
as beams and posts, flooring, paneling, doors and frames, cabinetry and
furniture, brick and decorative items.
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Credit 3.2
1 Point
in addition to
MR 3.1
Resource Reuse: 10%
Intent
Reuse building materials and products in order to reduce demand for virgin
materials and to reduce waste, thereby reducing impacts associated with the
extraction and processing of virgin resources.
Requirements
Use salvaged, refurbished or reused materials, products and furnishings for at
least 10% of building materials.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or other
responsible party, declaring that the credit requirements have been met
and listing each material or product used to meet the credit. Include
details demonstrating that the project incorporates the required percentage of reused materials and products and showing their costs and the
total cost of all materials for the project.
Potential Technologies & Strategies
Identify opportunities to incorporate salvaged materials into building design
and research potential material suppliers. Consider salvaged materials such
as beams and posts, flooring, paneling, doors and frames, cabinetry and
furniture, brick and decorative items.
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Credit 4.1
Recycled Content: 5% (post-consumer + 1/2 post-industrial)
1 Point
Intent
Increase demand for building products that incorporate recycled content
materials, therefore reducing impacts resulting from extraction and processing of new virgin materials.
Requirements
Use materials with recycled content such that the sum of post-consumer
recycled content plus one-half of the post-industrial content constitutes at
least 5% of the total value of the materials in the project.
The value of the recycled content portion of a material or furnishing shall be
determined by dividing the weight of recycled content in the item by the total
weight of all material in the item, then multiplying the resulting percentage
by the total value of the item.
Mechanical and electrical components shall not be included in this calculation. Recycled content materials shall be defined in accordance with the Federal Trade Commission document, Guides for the Use of Environmental Marketing
Claims, 16 CFR 260.7 (e), available at www.ftc.gov/bcp/grnrule/
guides980427.htm.
Potential Technologies & Strategies
Establish a project goal for recycled content materials and identify material
suppliers that can achieve this goal. During construction, ensure that the
specified recycled content materials are installed and quantify the total percentage of recycled content materials installed.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or other
responsible party, declaring that the credit requirements have been met
and listing the recycled content products used. Include details demonstrating that the project incorporates the required percentage of recycled
content materials and products and showing their cost and percentage(s)
of post-consumer and/or post-industrial content, and the total cost of all
materials for the project.
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Credit 4.2
1 Point
in addition to
MR 4.1
Recycled Content: 10% (post-consumer + 1/2 post-industrial)
Intent
Increase demand for building products that incorporate recycled content
materials, therefore reducing the impacts resulting from extraction and processing of new virgin materials.
Requirements
Use materials with recycled content such that the sum of post-consumer
recycled content plus one-half of the post-industrial content constitutes at
least 10% of the total value of the materials in the project.
The value of the recycled content portion of a material or furnishing shall be
determined by dividing the weight of recycled content in the item by the total
weight of all material in the item, then multiplying the resulting percentage
by the total value of the item.
Mechanical and electrical components shall not be included in this calculation. Recycled content materials shall be defined in accordance with the Federal Trade Commission document, Guides for the Use of Environmental Marketing
Claims, 16 CFR 260.7 (e), available at www.ftc.gov/bcp/grnrule/
guides980427.htm.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or other
responsible party, declaring that the credit requirements have been met
and listing the recycled content products used. Include details demonstrating that the project incorporates the required percentage of recycled
content materials and products and showing their cost and percentage(s)
of post-consumer and/or post-industrial content, and the total cost of all
materials for the project.
Potential Technologies & Strategies
Establish a project goal for recycled content materials and identify material
suppliers that can achieve this goal. During construction, ensure that the
specified recycled content materials are installed and quantify the total percentage of recycled content materials installed.
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Credit 5.1
Regional Materials: 20% manufactured regionally
1 Point
Intent
Increase demand for building materials and products that are extracted and
manufactured within the region, thereby supporting the regional economy
and reducing the environmental impacts resulting from transportation .
Requirements
Use a minimum of 20% of building materials and products that are manufactured* regionally within a radius of 500 miles.
* Manufacturing refers to the final assembly of components into the building product that is
furnished and installed by the tradesmen. For example, if the hardware comes from Dallas,
Texas, the lumber from Vancouver, British Columbia, and the joist is assembled in Kent,
Washington; then the location of the final assembly is Kent, Washington.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, declaring that the credit requirements have been met. Include calculations demonstrating that the project incorporates the required percentage of regional materials/products and showing their cost, percentage of regional components, distance from project to manufacturer, and
the total cost of all materials for the project.
Potential Technologies & Strategies
Establish a project goal for locally sourced materials and identify materials
and material suppliers that can achieve this goal. During construction, ensure
that the specified local materials are installed and quantify the total percentage of local materials installed.
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Credit 5.2
1 Point
in addition to
MR 5.1
Regional Materials: 50% extracted regionally
Intent
Increase demand for building materials and products that are extracted and
manufactured within the region, thereby supporting the regional economy
and reducing the environmental impacts resulting from transportation.
Requirements
Of the regionally manufactured materials documented for MR Credit 5.1, use
a minimum of 50% of building materials and products that are extracted,
harvested or recovered (as well as manufactured) within 500 miles of the project site.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible party,
declaring that the credit requirements have been met. Include calculations demonstrating that the project incorporates the required percentage of regional materials/products and showing their cost, percentage of regional components, distance from project to manufacturer, and the total cost of all materials for the project.
Potential Technologies & Strategies
Establish a project goal for locally sourced materials and identify materials
and material suppliers that can achieve this goal. During construction, ensure
that the specified local materials are installed and quantify the total percentage of local materials installed.
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Credit 6
Rapidly Renewable Materials
1 Point
Intent
Reduce the use and depletion of finite raw materials and long-cycle renewable materials by replacing them with rapidly renewable materials.
Requirements
Use rapidly renewable building materials and products (made from plants
that are typically harvested within a ten-year cycle or shorter) for 5% of the
total value of all building materials and products used in the project.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, declaring that the credit requirements have been met. Include calculations demonstrating that the project incorporates the required percentage of rapidly renewable products. Show their cost and percentage
of rapidly renewable components, and the total cost of all materials for
the project.
Potential Technologies & Strategies
Establish a project goal for rapidly renewable materials and identify materials
and suppliers that can achieve this goal. Consider materials such as bamboo
flooring, wool carpets, straw board, cotton batt insulation, linoleum flooring,
poplar OSB, sunflower seed board, wheatgrass cabinetry and others. During
construction, ensure that the specified rapidly renewable materials are installed.
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Credit 7
1 Point
Certified Wood
Intent
Encourage environmentally responsible forest management.
Requirements
Use a minimum of 50% of wood-based materials and products, certified in
accordance with the Forest Stewardship Council’s Principles and Criteria, for
wood building components including, but not limited to, structural framing
and general dimensional framing, flooring, finishes, furnishings, and nonrented temporary construction applications such as bracing, concrete form
work and pedestrian barriers.
Submittals
❏ Provide the LEED Letter Template, signed by the architect, owner or responsible party, declaring that the credit requirements have been met
and listing the FSC-certified materials and products used. Include calculations demonstrating that the project incorporates the required percentage
of FSC-certified materials/products and their cost together with the total
cost of all materials for the project. For each material/product used to
meet these requirements, provide the vendor’s or manufacturer’s Forest
Stewardship Council chain-of-custody certificate number.
Potential Technologies & Strategies
Establish a project goal for FSC-certified wood products and identify suppliers that can achieve this goal. During construction, ensure that the FSC-certified wood products are installed and quantify the total percentage of FSCcertified wood products installed.
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Indoor Environmental Quality
SS WE EA MR EQ ID
Prerequisite 1
Required
Minimum IAQ Performance
Intent
Establish minimum indoor air quality (IAQ) performance to prevent the development of indoor air quality problems in buildings, thus contributing to
the comfort and well-being of the occupants.
Requirements
Meet the minimum requirements of voluntary consensus standard ASHRAE
62-1999, Ventilation for Acceptable Indoor Air Quality, and approved Addenda (see ASHRAE 62-2001, Appendix H, for a complete compilation of
Addenda) using the Ventilation Rate Procedure.
Submittals
❏ Provide the LEED Letter Template, signed by the mechanical engineer or
responsible party, declaring that the project is fully compliant with ASHRAE
62-1999 and all published Addenda and describing the procedure employed in the IAQ analysis (Ventilation Rate Procedure).
Potential Technologies & Strategies
Design the HVAC system to meet the ventilation requirements of the referenced standard. Identify potential IAQ problems on the site and locate air
intakes away from contaminant sources.
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Prerequisite 2
Required
Environmental Tobacco Smoke (ETS) Control
Intent
Prevent exposure of building occupants and systems to Environmental Tobacco Smoke (ETS).
Requirements
Zero exposure of non-smokers to ETS by EITHER:
●
prohibiting smoking in the building and locating any exterior designated smoking areas away from entries and operable windows;
●
providing a designated smoking room designed to effectively contain, capture and remove ETS from the building. At a minimum, the
smoking room must be directly exhausted to the outdoors with no
recirculation of ETS-containing air to the non-smoking area of the
building, enclosed with impermeable deck-to-deck partitions and
operated at a negative pressure compared with the surrounding spaces
of at least 7 PA (0.03 inches of water gauge).
●
Performance of the smoking rooms shall be verified by using tracer
gas testing methods as described in the ASHRAE Standard 129-1997.
Acceptable exposure in non-smoking areas is defined as less than 1%
of the tracer gas concentration in the smoking room detectable in the
adjoining non-smoking areas. Smoking room testing as described in
ASHRAE Standard 129-1997 is required in the contract documents
and critical smoking facility systems testing results must be included
in the building commissioning plan and report or as a separate document.
OR
Submittals
❏ Provide the LEED Letter Template, signed by the building owner or responsible party, declaring that the building will be operated under a
policy prohibiting smoking.
OR
❏ Provide the LEED Letter Template, signed by the mechanical engineer or
responsible party, declaring and demonstrating that designated smoking
rooms are exhausted to the outdoors with no recirculation of ETS-containing air to the non-smoking area of the building, enclosed with impermeable deck-to-deck partitions, operated at a negative pressure compared with the surrounding spaces of at least 7 PA (0.03 inches of water
gauge), and performance has been verified using the method described
in the credit requirements.
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Prerequisite 2
Environmental Tobacco Smoke (ETS) Control
Required
(continued)
Potential Technologies & Strategies
Prohibit smoking in the building or provide separate smoking rooms with
isolated ventilation systems.
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Credit 1
1 Point
Carbon Dioxide (CO2) Monitoring
Intent
Provide capacity for indoor air quality (IAQ) monitoring to help sustain longterm occupant comfort and well-being.
Requirements
Install a permanent carbon dioxide (CO 2) monitoring system that provides
feedback on space ventilation performance in a form that affords operational
adjustments. Refer to the CO2 differential for all types of occupancy in accordance with ASHRAE 62-2001, Appendix D.
Submittals
❏ Provide the LEED Letter Template, signed by the mechanical engineer or
responsible party, declaring and summarizing the installation, operational
design and controls/zones for the carbon dioxide monitoring system. For
mixed-use buildings, calculate CO 2 levels for each separate activity level
and use.
Potential Technologies & Strategies
Design the HVAC system with carbon dioxide monitoring sensors and integrate these sensors with the building automation system (BAS).
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Credit 2
Ventilation Effectiveness
1 Point
Intent
Provide for the effective delivery and mixing of fresh air to support the safety,
comfort and well-being of building occupants.
Requirements
For mechanically ventilated buildings, design ventilation systems that result in
an air change effectiveness (Eac) greater than or equal to 0.9 as determined by
ASHRAE 129-1997. For naturally ventilated spaces demonstrate a distribution
and laminar flow pattern that involves not less than 90% of the room or zone
area in the direction of air flow for at least 95% of hours of occupancy.
Submittals
❏ For mechanically ventilated spaces: provide the LEED Letter Template,
signed by the mechanical engineer or responsible party, declaring that
the design achieves an air change effectiveness (Eac) of 0.9 or greater in
each ventilated zone. Complete the table summarizing the air change
effectiveness achieved for each zone.
OR
❏ For mechanically ventilated spaces: provide the LEED Letter Template, signed
by the mechanical engineer or responsible party, declaring that the design
complies with the recommended design approaches in ASHRAE 2001 Fundamentals Chapter 32, Space Air Diffusion.
OR
❏ For naturally ventilated spaces: provide the LEED Letter Template, signed
by the mechanical engineer or responsible party, declaring that the design provides effective ventilation in at least 90% of each room or zone
area in the direction of airflow for at least 95% of hours of occupancy.
Include a table summarizing the airflow simulation results for each zone.
Include sketches indicating the airflow pattern for each zone.
Potential Technologies & Strategies
Design the HVAC system and building envelope to optimize air change effectiveness. Air change effectiveness can be optimized using a variety of ventilation strategies including displacement ventilation, low-velocity ventilation,
plug-flow ventilation such as under floor or near floor delivery, and operable
windows. Test the air change effectiveness of the building after construction.
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Credit 3.1
1 Point
Construction IAQ Management Plan: During Construction
Intent
Prevent indoor air quality problems resulting from the construction/renovation process in order to help sustain the comfort and well-being of construction workers and building occupants.
Requirements
Develop and implement an Indoor Air Quality (IAQ) Management Plan for
the construction and pre-occupancy phases of the building as follows:
●
During construction meet or exceed the recommended Design Approaches of the Sheet Metal and Air Conditioning National Contractors Association (SMACNA) IAQ Guideline for Occupied Buildings
under Construction, 1995, Chapter 3.
●
Protect stored on-site or installed absorptive materials from moisture
damage.
●
If air handlers must be used during construction, filtration media with
a Minimum Efficiency Reporting Value (MERV) of 8 must be used at
each return air grill, as determined by ASHRAE 52.2-1999.
●
Replace all filtration media immediately prior to occupancy. Filtration media shall have a Minimum Efficiency Reporting Value (MERV)
of 13, as determined by ASHRAE 52.2-1999 for media installed at the
end of construction.
Submittals
❏ Provide the LEED Letter Template, signed by the general contractor or
responsible party, declaring that a Constuction IAQ Management Plan
has been developed and implemented, and listing each air filter used
during construction and at the end of construction. Include the MERV
value, manufacturer name and model number.
AND EITHER
❏ Provide 18 photographs—six photographs taken on three different occasions during construction—along with identification of the SMACNA approach featured by each photograph, in order to show consistent adherence to the credit requirements
OR
❏ Declare the five Design Approaches of SMACNA IAQ Guideline for Occupied Buildings under Construction, 1995, Chapter 3, which were used
during building construction. Include a brief description of some of the
important design approaches employed.
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Credit 3.1
Construction IAQ Management Plan: During Construction
1 Point
(continued)
Potential Technologies & Strategies
Adopt an IAQ management plan to protect the HVAC system during construction, control pollutant sources and interrupt contamination pathways.
Sequence the installation of materials to avoid contamination of absorptive
materials such as insulation, carpeting, ceiling tile and gypsum wall board.
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Credit 3.2
1 Point
Construction IAQ Management Plan: Before Occupancy
Intent
Prevent indoor air quality problems resulting from the construction/renovation process in order to help sustain the comfort and well-being of construction workers and building occupants.
Requirements
Develop and implement an Indoor Air Quality (IAQ) Management Plan for
the pre-occupancy phase as follows:
●
After construction ends and prior to occupancy conduct a minimum
two-week building flush-out with new Minimum Efficiency Reporting
Value (MERV) 13 filtration media at 100% outside air. After the flushout, replace the filtration media with new MERV 13 filtration media,
except the filters solely processing outside air.
●
Conduct a baseline indoor air quality testing procedure consistent
with the United States Environmental Protection Agency’s current Protocol for Environmental Requirements, Baseline IAQ and Materials, for the Research Triangle Park Campus, Section 01445.
OR
Submittals
❏ Provide the LEED Letter Template, signed by the architect, general contractor or responsible party, describing the building flush-out procedures
and dates.
OR
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, declaring that the referenced standard’s IAQ testing protocol has
been followed. Include a copy of the testing results.
Potential Technologies & Strategies
Prior to occupancy, perform a two week building flush-out or test the contaminant levels in the building.
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Credit 4.1
Low-Emitting Materials: Adhesives & Sealants
1 Point
Intent
Reduce the quantity of indoor air contaminants that are odorous, potentially
irritating and/or harmful to the comfort and well-being of installers and occupants.
Requirements
The VOC content of adhesives and sealants used must be less than the current VOC content limits of South Coast Air Quality Management District
(SCAQMD) Rule #1168, AND all sealants used as fillers must meet or exceed
the requirements of the Bay Area Air Quality Management District Regulation
8, Rule 51.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, listing the adhesives and sealants used in the building and declaring that they meet the noted requirements.
Potential Technologies & Strategies
Specify Low-VOC materials in construction documents. Ensure that VOC limits are clearly stated in each section where adhesives and sealants are addressed.
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Credit 4.2
1 Point
Low-Emitting Materials: Paints and Coatings
Intent
Reduce the quantity of indoor air contaminants that are odorous, potentially
irritating and/or harmful to the comfort and well-being of installers and occupants.
Requirements
VOC emissions from paints and coatings must not exceed the VOC and chemical component limits of Green Seal’s Standard GS-11 requirements.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, listing all the interior paints and coatings used in the building that
are addressed by Green Seal Standard GS-11 and stating that they comply
with the current VOC and chemical component limits of the standard.
Potential Technologies & Strategies
Specify Low-VOC paints and coatings in construction documents. Ensure that
VOC limits are clearly stated in each section where paints are addressed.
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Credit 4.3
Low-Emitting Materials: Carpet
1 Point
Intent
Reduce the quantity of indoor air contaminants that are odorous, potentially
irritating and/or harmful to the comfort and well-being of installers and occupants.
Requirements
Carpet systems must meet or exceed the requirements of the Carpet and Rug
Institute’s Green Label Indoor Air Quality Test Program.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, listing all the carpet systems used in the building and stating that
they comply with the current VOC limits of the Carpet and Rug Institute’s
Green Label Indoor Air Quality Test Program.
Potential Technologies & Strategies
Specify Low-VOC carpet products and systems in construction documents.
Ensure that VOC limits are clearly stated where carpet systems are addressed.
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Credit 4.4
1 Point
Low-Emitting Materials: Composite Wood
Intent
Reduce the quantity of indoor air contaminants that are odorous, potentially
irritating and/or harmful to the comfort and well-being of installers and occupants.
Requirements
Composite wood and agrifiber products must contain no added urea-formaldehyde resins.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, listing all the composite wood products used in the building and
stating that they contain no added urea-formaldehyde resins.
Potential Technologies & Strategies
Specify wood and agrifiber products that contain no added urea-formaldehyde resins.
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Credit 5
Indoor Chemical & Pollutant Source Control
1 Point
Intent
Avoid exposure of building occupants to potentially hazardous chemicals
that adversely impact air quality.
Requirements
Design to minimize pollutant cross-contamination of regularly occupied areas:
●
Employ permanent entryway systems (grills, grates, etc.) to capture
dirt, particulates, etc. from entering the building at all high volume
entryways.
●
Where chemical use occurs (including housekeeping areas and copying/printing rooms), provide segregated areas with deck to deck partitions with separate outside exhaust at a rate of at least 0.50 cubic
feet per minute per square foot, no air re-circulation and maintaining
a negative pressure of at least 7 PA (0.03 inches of water gauge).
●
Provide drains plumbed for appropriate disposal of liquid waste in
spaces where water and chemical concentrate mixing occurs.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, declaring that:
●
Permanent entryway systems (grilles, grates, etc.) to capture dirt, particulates, etc. are provided at all high volume entryways.
●
Chemical use areas and copy rooms have been physically separated
with deck-to-deck partitions; independent exhaust ventilation has been
installed at 0.50 cfm/square foot and that a negative pressure differential of 7 PA has been achieved.
●
In spaces where water and chemical concentrate mixing occurs, drains
are plumbed for environmentally appropriate disposal of liquid waste.
Potential Technologies & Strategies
Design separate exhaust and plumbing systems for rooms with contaminants
to achieve physical isolation from the rest of the building. Install permanent
architectural entryway systems such as grills or grates to prevent occupantborne contaminants from entering the building.
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Credit 6.1
1 Point
Controllability of Systems: Perimeter Spaces
Intent
Provide a high level of thermal, ventilation and lighting system control by
individual occupants or specific groups in multi-occupant spaces (i.e. classrooms or conference areas) to promote the productivity, comfort and wellbeing of building occupants.
Requirements
Provide at least an average of one operable window and one lighting control
zone per 200 square feet for all regularly occupied areas within 15 feet of the
perimeter wall.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, demonstrating and declaring that for regularly occupied perimeter
areas of the building a minimum of one operable window and one lighting control zone are provided per 200 square feet on average.
Potential Technologies & Strategies
Design the building with occupant controls for airflow, temperature and lighting. Strategies to consider include lighting controls, task lighting and operable windows.
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Credit 6.2
Controllability of Systems: Non-Perimeter Spaces
1 Point
Intent
Provide a high level of thermal, ventilation and lighting system control by
individual occupants or specific groups in multi-occupant spaces (i.e. classrooms or conference areas) to promote the productivity, comfort and wellbeing of building occupants.
Requirements
Provide controls for each individual for airflow, temperature and lighting for
at least 50% of the occupants in non-perimeter, regularly occupied areas.
Submittals
❏ Provide the LEED Letter Template, signed by the architect or responsible
party, demonstrating and declaring that controls for individual airflow,
temperature and lighting are provided for at least 50% of the occupants in
non-perimeter, regularly occupied areas.
Potential Technologies & Strategies
Design the building with occupant controls for airflow, temperature and lighting. Strategies to consider include task lighting and underfloor HVAC systems
with individual diffusers.
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Credit 7.1
1 Point
Thermal Comfort: Compliance with ASHRAE 55-1992
Intent
Provide a thermally comfortable environment that supports the productivity
and well-being of building occupants.
Requirements
Comply with ASHRAE Standard 55-1992, Addenda 1995, for thermal comfort
standards including humidity control within established ranges per climate
zone. For naturally ventilated buildings, utilize the adaptive comfort temperature boundaries, using the 90% acceptability limits as defined in the
California High Performance Schools (CHPS) Best Practices Manual, Appendix C – A Field Based Thermal Comfort Standard for Naturally Ventilated
Buildings, Figure 2.
Submittals
❏ For mechanically ventilated spaces: provide the LEED Letter Template,
signed by the engineer or responsible party, declaring that the project
complies with ASHRAE Standard 55-1992, Addenda 1995. Include a table
that identifies each thermally controlled zone, and that summarizes for
each zone the temperature and humidity control ranges and the method
of control used.
OR
❏ For naturally ventilated spaces: provide the LEED Letter Template, signed
by the engineer or responsible party declaring that the project complies
with the 90% acceptability limits of the adaptive comfort temperature
boundaries in the California High Performance Schools (CHPS) Best Practices Manual Appendix C – A Field Based Thermal Comfort Standard for
Naturally Ventilated Buildings, Figure 2.
Potential Technologies & Strategies
Establish temperature and humidity comfort ranges and design the building
envelope and HVAC system to maintain these comfort ranges.
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Credit 7.2
Thermal Comfort: Permanent Monitoring System
1 Point
in addition to
EQ 7.1
Intent
Provide a thermally comfortable environment that supports the productivity
and well-being of building occupants.
Requirements
Install a permanent temperature and humidity monitoring system configured
to provide operators control over thermal comfort performance and the effectiveness of humidification and/or dehumidification systems in the building.
Submittals
❏ Provide the LEED Letter Template, signed by the engineer or responsible
party, declaring that a permanent temperature and humidity monitoring
system will operate throughout all seasons to permit control of the building zones within the seasonal thermal comfort ranges defined in ASHRAE
55-1992, Addenda 1995. Confirm that the temperature and humidity controls were (or will be) tested as part of the scope of work for Energy and
Atmosphere Prerequisite 1, Fundamental Building Systems Commissioning. Include the document name and section number where the commissioning work is listed.
Potential Technologies & Strategies
Establish temperature and humidity comfort ranges and design the building
envelope and HVAC system to maintain these comfort ranges. Install and
maintain a temperature and humidity monitoring system in the building to
automatically adjust building conditions as appropriate.
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Credit 8.1
1 Point
Daylight and Views: Daylight 75% of Spaces
Intent
Provide for the building occupants a connection between indoor spaces and
the outdoors through the introduction of daylight and views into the regularly occupied areas of the building.
Requirements
Achieve a minimum Daylight Factor of 2% (excluding all direct sunlight penetration) in 75% of all space occupied for critical visual tasks. Spaces excluded from this requirement include copy rooms, storage areas, mechanical
plant rooms, laundry and other low occupancy support areas. Other exceptions for spaces where tasks would be hindered by the use of daylight will be
considered on their merits.
Submittals
❏ Provide the LEED Letter Template signed by the architect or responsible
party. Provide area calculations that define the daylight zone and provide
prediction calculations or daylight simulation.
Potential Technologies & Strategies
Design the building to maximize interior daylighting. Strategies to consider
include building orientation, shallow floor plates, increased building perimeter, exterior and interior permanent shading devices, high performance glazing
and photo-integrated light sensors. Predict daylighting via calculations or
model daylighting strategies with a physical or computer model to assess
footcandle levels and daylight factors achieved.
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Credit 8.2
Daylight and Views: Views for 90% of Spaces
1 Point
Intent
Provide for the building occupants a connection between indoor spaces and
the outdoors through the introduction of daylight and views into the regularly occupied areas of the building.
Requirements
Achieve direct line of sight to vision glazing for building occupants in 90% of
all regularly occupied spaces. Examples of exceptions include copy rooms,
storage areas, mechanical, laundry and other low occupancy support areas.
Other exceptions will be considered on their merits.
Submittals
❏ Provide the LEED Letter Template and calculations describing, demonstrating and declaring that the building occupants in 90% of regularly
occupied spaces will have direct lines of site to perimeter glazing. Provide drawings highlighting the direct line of sight zones.
Potential Technologies & Strategies
Design the building to maximize view opportunities.
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Credit 1
1-4 Points
Innovation & Design Process
Innovation in Design
Intent
To provide design teams and projects the opportunity to be awarded points
for exceptional performance above the requirements set by the LEED Green
Building Rating System and/or innovative performance in Green Building
categories not specifically addressed by the LEED Green Building Rating System.
Requirements
Credit 1.1 (1 point)
In writing, identify the intent of the proposed innovation credit, the proposed requirement for compliance,
the proposed submittals to demonstrate compliance,
and the design approach (strategies) that might be used
to meet the requirements.
Credit 1.2 (1 point)
Same as Credit 1.1
Credit 1.3 (1 point)
Same as Credit 1.1
Credit 1.4 (1 point)
Same as Credit 1.1
Submittals
❏ Provide the proposal(s) within the LEED Letter Template (including intent, requirement, submittals and possible strategies) and relevant evidence of performance achieved.
Potential Technologies & Strategies
Substantially exceed a LEED performance credit such as energy performance
or water efficiency. Apply strategies or measures that are not covered by
LEED such as acoustic performance, education of occupants, community
development or lifecycle analysis of material choices.
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Credit 2.1
LEED Accredited Professional
1 Point
Intent
To support and encourage the design integration required by a LEED Green
Building project and to streamline the application and certification process.
Requirement
At least one principal participant of the project team that has successfully
completed the LEED Accredited Professional exam
Submittals
❏ Provide the LEED Letter Template stating the LEED Accredited Professional’s
name, title, company and contact information. Include a copy of this
person’s LEED Accredited Professional Certificate.
Potential Technologies & Strategies
Attending a LEED Accredited Professional Training Workshop is recommended
but not required. Study the LEED Reference Guide. Successfully pass the
LEED accreditation exam.
LEEDTM Rating System Version 2.1
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